DE3420600A1 - Optischer codierer - Google Patents

Optischer codierer

Info

Publication number
DE3420600A1
DE3420600A1 DE19843420600 DE3420600A DE3420600A1 DE 3420600 A1 DE3420600 A1 DE 3420600A1 DE 19843420600 DE19843420600 DE 19843420600 DE 3420600 A DE3420600 A DE 3420600A DE 3420600 A1 DE3420600 A1 DE 3420600A1
Authority
DE
Germany
Prior art keywords
optical encoder
encoder according
laser
beams
pulse scale
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19843420600
Other languages
German (de)
English (en)
Other versions
DE3420600C2 (enrdf_load_stackoverflow
Inventor
Mutsuo Amagasaki Hyogo Hirai
Kazuro Nishi
Isao Watanabe
Koichi Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE3420600A1 publication Critical patent/DE3420600A1/de
Application granted granted Critical
Publication of DE3420600C2 publication Critical patent/DE3420600C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/301—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
DE19843420600 1983-06-03 1984-06-01 Optischer codierer Granted DE3420600A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9896283A JPS59224515A (ja) 1983-06-03 1983-06-03 光学式エンコ−ダ

Publications (2)

Publication Number Publication Date
DE3420600A1 true DE3420600A1 (de) 1984-12-13
DE3420600C2 DE3420600C2 (enrdf_load_stackoverflow) 1989-09-07

Family

ID=14233692

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843420600 Granted DE3420600A1 (de) 1983-06-03 1984-06-01 Optischer codierer

Country Status (2)

Country Link
JP (1) JPS59224515A (enrdf_load_stackoverflow)
DE (1) DE3420600A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737278A1 (de) * 1986-11-04 1988-05-11 Canon Kk Verfahren und vorrichtung zum optischen erfassen der stellung eines objekts
WO2001073379A1 (en) * 2000-03-28 2001-10-04 Aim Controls, Inc. Rotary encoder
DE10311412B3 (de) * 2003-03-13 2004-05-27 Lenord, Bauer & Co. Gmbh Verfahren zur Messung und Bestimmung der absoluten Position einer Geberwelle sowie einer Einrichtung zur Anwendung des Verfahrens
EP1882909A1 (en) 2006-07-28 2008-01-30 Mitutoyo Corporation Optical encoder and collimator lens

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733069A (en) * 1986-02-14 1988-03-22 Optec Co., Ltd. Position encoder using a laser scan beam
JP2508428B2 (ja) * 1986-10-03 1996-06-19 ソニー株式会社 光学式エンコ−ダ
DE4220502C1 (de) * 1992-06-23 1993-12-16 Stegmann Max Antriebstech Drehwinkelmeßsystem
JPH10260007A (ja) * 1997-03-14 1998-09-29 Ricoh Co Ltd 相対位置検出装置
JP3672438B2 (ja) * 1998-07-08 2005-07-20 株式会社リコー 光学式エンコーダ装置
US7532370B2 (en) 2002-12-02 2009-05-12 Ricoh Company, Ltd. Optical encoder, motor driver and image forming apparatus
JP2009264778A (ja) * 2008-04-22 2009-11-12 Satoshi Kiyono 光スポット変位検出装置及び計測装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384891A (en) * 1971-01-08 1975-02-26 Philips Electronic Associated Apparatus for aligning a mask with respect to a semiconductor substrate
DE2517176A1 (de) * 1975-04-18 1976-10-21 Espera Werke Gmbh Einstellvorrichtung fuer abtastvorrichtungen an merkmalskalen
DE2948072A1 (de) * 1978-12-21 1980-07-10 Hewlett Packard Co Impulsgenerator fuer drehmelder
GB1582756A (en) * 1976-11-08 1981-01-14 Gilbert & Barker Mfg Co Pulse-generating apparatus responsive to shaft rotation
DE3145098A1 (de) * 1980-11-25 1982-06-16 BEI Electronics, Inc., 93103 Santa Barbara, Calif. Optisches system fuer einen optischen codierer
DE3205544A1 (de) * 1981-02-17 1982-09-16 Ricoh Co., Ltd., Tokyo Rotierender kodierer
GB2114834A (en) * 1982-02-12 1983-08-24 Solenoids And Regulators Limit Displacement encoder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384891A (en) * 1971-01-08 1975-02-26 Philips Electronic Associated Apparatus for aligning a mask with respect to a semiconductor substrate
DE2517176A1 (de) * 1975-04-18 1976-10-21 Espera Werke Gmbh Einstellvorrichtung fuer abtastvorrichtungen an merkmalskalen
GB1582756A (en) * 1976-11-08 1981-01-14 Gilbert & Barker Mfg Co Pulse-generating apparatus responsive to shaft rotation
DE2948072A1 (de) * 1978-12-21 1980-07-10 Hewlett Packard Co Impulsgenerator fuer drehmelder
DE3145098A1 (de) * 1980-11-25 1982-06-16 BEI Electronics, Inc., 93103 Santa Barbara, Calif. Optisches system fuer einen optischen codierer
DE3205544A1 (de) * 1981-02-17 1982-09-16 Ricoh Co., Ltd., Tokyo Rotierender kodierer
GB2114834A (en) * 1982-02-12 1983-08-24 Solenoids And Regulators Limit Displacement encoder

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
FR-Z: Mesures, Regulation , Automatisme 1977, H.9, S.45-51 *
GB-Z: The Marconi Review XLVI, Nr.228, 1983, erst. Quartal, S. 26-42 *
US-Z: IBM Technical Disclosure Bulletin, Vol.25, Nr.12, Mai 1983, S.6438-6439 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737278A1 (de) * 1986-11-04 1988-05-11 Canon Kk Verfahren und vorrichtung zum optischen erfassen der stellung eines objekts
US5129725A (en) * 1986-11-04 1992-07-14 Canon Kabushiki Kaisha Method of optically detecting position of object and position detecting apparatus using the method
WO2001073379A1 (en) * 2000-03-28 2001-10-04 Aim Controls, Inc. Rotary encoder
DE10311412B3 (de) * 2003-03-13 2004-05-27 Lenord, Bauer & Co. Gmbh Verfahren zur Messung und Bestimmung der absoluten Position einer Geberwelle sowie einer Einrichtung zur Anwendung des Verfahrens
EP1882909A1 (en) 2006-07-28 2008-01-30 Mitutoyo Corporation Optical encoder and collimator lens
US7619745B2 (en) 2006-07-28 2009-11-17 Mitutoyo Corporation Optical encoder including aperture with diffusion element and collimator lens
CN101113916B (zh) * 2006-07-28 2010-12-01 三丰株式会社 光学式编码器及准直仪透镜

Also Published As

Publication number Publication date
JPH0442604B2 (enrdf_load_stackoverflow) 1992-07-14
JPS59224515A (ja) 1984-12-17
DE3420600C2 (enrdf_load_stackoverflow) 1989-09-07

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: H03M 1/24

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee